I am shocked. For months I have been suffering from sev ere muscle cramps in my legs and back that have meant I've been on increased painkillers. I have been blaming lack of exercise, but now that I've been going to a gym for weeks I've been blaming the new exercise. Now I'm questioning Lipitor - and reading so many of the side effects about muscle problems makes me think it's the drug. I also have had increasing urinary incontinence - more blaming of me. A new doctor said I need blood tests to see if I need a change of blood pressure medication - by chance I note that he has written on that request that I am on Lipitor. I didn't mention my aches and pains because not one doctor has told me there could be any side effects with Lipitor. Hence, I am shocked that there is so much documentation about the serious side effects of it.